68300808817 has 4 divisors (see below), whose sum is σ = 68301535600. Its totient is φ = 68300082036.

The previous prime is 68300808781. The next prime is 68300808839. The reversal of 68300808817 is 71880800386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71880800386 = 2 ⋅35940400193.

It is a cyclic number.

It is not a de Polignac number, because 68300808817 - 2²⁷ = 68166591089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68300808857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197043 + ... + 418840.

It is an arithmetic number, because the mean of its divisors is an integer number (17075383900).

Almost surely, 2^68300808817 is an apocalyptic number.

It is an amenable number.

68300808817 is a deficient number, since it is larger than the sum of its proper divisors (726783).

68300808817 is a wasteful number, since it uses less digits than its factorization.

68300808817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726782.

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 68300808817 in words is "sixty-eight billion, three hundred million, eight hundred eight thousand, eight hundred seventeen".